On Board Computer fault - no Display

[t4xi]

Hi, I have a 406 coupe which after jumping due to flat battery the On board computer display has developed a fault, Confused the unit is still backlit but no info on the display Confused , please can anyone suggest anything??

many thanks

http://www.flickr.com/photos/90831510@N03/11212361824

[lozz]

Hi, check the connection on it unplug and plug it back in,.
remove side pieces /two torques screws in each side
2mins to remove and check,

[t4xi]

the problem is not there, I checked connection and display but nothing

[gumby6371]

BSI reset must be worth a try?

[twinspin]

I come from an electronics background and have very little experience with car electronics so be kind but correct me if i'm approaching this from the wrong angle. I would guess if this happened during a jump then a surge will to be blame so I would find the schematic of the unit and firstly check the voltage rails are still present on the board. I would assume the backlight for the LCD works off 12v so I would say the 12v rail is still present and correct. If the digital display side of things is off then you may find a 3.3v or 5v rail is missing. Thats a good starting point.

[twinspin]

Iv been looking for a pin out or schematic for the unit but cant see one. I don't have much spare time but if anyone has this its a good place to start here.

[twinspin]

My displays Tab-Bonds are pretty perished resulting in a lovely stripy display. ill try and make a bit of time over the coming week to pop it off, whilst im in there i will have a sniff around and see if i can give some more specific info as regards to your fault whilst im in there..

[steve_earwig]

Is that the normal display without sat nav? Any chance of an RPO?

[jonsowman]

That is indeed the non-nav display Steve

[twinspin]

Is that the normal display without sat nav? Any chance of an RPO?

Sure is, the same one as your own and erm ill gladly help out but that really depends what a RPO is?

[steve_earwig]

That is indeed the non-nav display Steve

Wellidunodoi?

Not having ever seen a sat nav display in the flesh I don't know what they look like in the dark...

I stuck mine into Sedre earlier, there was only about 5 wires actually connected into it One is mux but I suspect this is a power issue otherwise it'd be saying - - - or similar.

viewtopic.php?f=3&t=16187&p=158895&hili ... am#p158895 Although it's probably not as important now I know I can use mine (& hopefully Pug didn't sod around with it)

[steve_earwig]

Mutifunction screen electrical diagram (a la my car). I'd put the electrical diagram on but it doesn't show anything different and this is clearer. Red wires are mux...

Must dash...

multifunction.JPG

[t4xi]

Hello, i bought new display from Silver/Black Special Edition 2002year and now all is ok

[markw]

Might I respectfully ask that you get in touch with member 'jonsowman' on here....I think he was after dead ones to see if they could be resurrected by reflowing the ribbon cable joints.